Cream-separator.



O. A. KRENKE.-

CREAM SEPARATOR.

APPLICATION FILED JUNE 15. 1916.

Patented Feb. 19, 1918.

OTTO A; KRENKE, 0]? PORT HURON,

MICHIGAN, ASSIGNOR TO ANKER-HOLTH MANUFAC TUBING 00., OF PORT HURON,MICHIGAN, A CORPORATION MICHIGAN.

. CREAM-SEPARATOB.

Application filed June 15, 1916.

To all whom it may concern:

Be it known that I, OTTO A. KRENKE, a citizen of the United States,residing at Port Huron, county of St. Clair, State of Michigan, haveinvented a certain new and useful Improvement in Cream-Separators, anddeclare the followin to be a full, clear, and exact descriptiono thesame, such as will enable others skilled in the art to which it pertainsto make and use the same, reference being had to the accompanying draw-,

ings, which form a part of this specification.

This invention relates to an automatically controlled feed for the milkof a cream separator. It comprises a governor arranged to allow the milkto enter the cream separator when a predetermined speed of the revolubleelement of the cream separator has been reached, and also to shut offthe feed of milk when the speed of the revoluble element falls below thepredetermined speed or ralaterially exceeds the predetermined s ee It isnecessary for the proper operation of a cream separator which works uponthe centrifugal force principle that the machine be operated at thespeed which it was designed for, for it will be obviousthat the increaseor decrease of the speed above or below a given point changes thecentrifugal force and makes the operation of the machine and itsseparating functions wholly unreliable. This has long been known and ithas been overcome by the use of devices which indicate the speed of therevolving element and which are consulted by the operator before andwhilethe milk is fed into the separator. Of course any machine dependingupon human operation is subject to the frailty and the uncertainties ofhuman vigilance. It is the object of my invention to do away entirelywith the human element and to make the machine entirely automatic. Tothis end I have devised the'mechanism hereinafter to be described.

In the drawings,- I

Figure 1 is a side elevation of the cream separator with the controlapparatus and a portion of the receptacle, some of the parts beingsectioned for clearness of illustration.

Fig. 2 is a detail of the driving connections.

Fig. 3 is a detail of the connection be- I tween the cut off valve andthe governor.

Specification of Letters Patent.

Patented Feb. is, rare.

Serial No. 103,709.

Fig. 4 is a detail of the pivot that I use to make the walking beamdetachable.

The cream separator is designated a. Its details of construction and itsmode of operation need not be detailed. Suffice it to say that it is theordinary separator operated upon the centrifugal principle. -The largedriving gear is designated 6 and to this is connected the driven pinion'0 carried upon a shaft which has on its opposite end a beveled drivingpinion d which meshes with the beveled driven pinion e. This is on thelower end of a vertical shaft journaled 111a yoke. f and below the topof the yoke the shaft is provided with a sleeve 9 which is'fast thereto.Near the lower end of the yoke the shaft is provided with a slip sleeveIt. To each of these sleeves is pivoted a pair of links 2' and the upperlinks have on their ends the weighted ballsj forming the well knowncentrifugal governor. The spiral spring It tends to space the twosleeves apart and resist the tendency to throw out caused by rapidrotation of the balls. The u per part of the shaft is screw-threaded anthe adjusting nut and lock nut Z are located on this threaded portion sothat the pressure of the spring may be adjusted to regulate the springpressure and determine the speed of the revoluble element necessary toovercome the spring pressure and throw the balls out.

The slip sleeve h is provided with a half spherical terminal whichprovides an upwardly directed circular face upon which runs the end of alever m which is held to this face by the small spiral spring at. Thislever m is provided at its outward end with a vertical extension 17which is screw-threaded at its end to receive the two nuts 0 whichadjustably connect it with the walking beam 9. This walking beam 9 ispivoted on an upright 1' by the pivot s. The outer end of the walkingbeam is bifurcated and straddles the pivot pin 25 carried on the end ofthe valve stem 20. v

The milk is contained in the receptacle '2), which is provided with anoutflow pipe to whose end is shaped to provide a tapered valve chamber:0 adapted to receive a turn-plug valve 3 which has a chambered centerand when turned as shown in Fig. 1 communicates with the outflowpassage-way w and discharges through the opening in the bottom of thevalve.

It will be obvious that thisturn-plug valve may be used to entirely outthe flow off by turning the-side opening around to the position ofnon-registry with the out-flow passage to. ,This may be done by the handas the top of the valve is provided with a Wing z for this purpose. Be-

7 low the turn-plug valve the valve chamber :1: extends some distance toform a puppet valve chamber 1 in which the puppet valve 2 functions.When this puppet valve is raised to the limit of its upward movement itcloses the opening in the bottom of the turn-plug. valve. When it isdropped it seats upon the valve seat about the final outflow opening inthe valve chamber -00. It will, therefore, be understood that ordinarilythe valve 2seats upon the rimof the outflow opening in the valve chamberat and consequently prevents the flow of the m1lk into the creamseparator a. Now, when a predetermined speed has been reached 1n therotation of the revoluble element in the cream separator a, the balls jof the governor overcome the pressure whlch has been given the spring 70by ad]ustmg th e nuts l, and the balls throw out, thereby raising theslip sleeve k, the contact end of the lever m,

pulling down the opposite end of the lever,

and consequently the left hand end of the walking beam 9, therebyraising the valve stem 2? and the puppet valve 2 from its seat to such aposition as is shown in Fig. 1. In

this position the milk may freely flow into- When the predeterthe creamseparator. mined speed is materially exceeded, the balls continue tothrow out and the puppet valve continues to rise untilit reaches theopening in the bottom of the turn-plug valve and-seats thereupon andcompletely closes oil the flow of the milk. In this position the valveremains until the proper spe'ed'of the revoluble element has again beeni reached.

It will be noticed that the walking beam is arranged so that it may beeasily removedfrom the devices attached to the milk receptacle so as toallow the milk receptacle to be removed. The walking beam is pivotedupon a handle-provided pivot s which is detailed in Fig. 4 and shown inFig.3. The pivot is provided with two flat sides so that when the handleis'turned parallel with the walking beam, the walking beam may beslipped over the flat sides of the handle-provided pivot, the latterpassing through the aperture 3 in the side of that portion of thewalking beam which engages around the pivot opening. This allows thebifurcated end of the walking beam to be drawn away from the pivot If sothat the milk receptacle together with the devices it carries can beremoved from the cream' separator and the governor apparatus. It is alsonoted that the walking beam is provided with a hooked portion-4 on itslower separator has been attained and which preeludes the flow-of'theliquid when excessive speed of the liquid separator is attained.

2. In a liquid-feeding governor of the character described, thecombination of a centrifugal liquid separator, a feed line leadingthereto, an inlet valve for controlling the 1 feed line, and meansgoverning said valve for allowing the flow only when a predeterminedspeed has been reached by the revoluble element of the centrifugalseparator, and

' said means further closing off the flow when.

said predetermined speed has been materially increased or decreased.

3. In a governor-controlled valve, an outflow pipe provided on its endwith a terminal open at top and bottom forming a valve chamber, aturn-plug valve having a chambered center open at its lower end andcommunicating with the exterior through one side, said turn-plug valvebeing adapted to allow the discharge of fluid therethrough when the sideopening in the same registers with the passage-way in the outflow pipe,a puppet valve located in the space between the lower end of theturn-plug valve and the valve chamber andgoverning the opening at thebottom of the turn-plug valve and the opening at the bottom of the valvechamber,

anda governor for automatically operating said puppet valve when arevoluble element attains certain specified speeds.

4. In a governor-controlled valve, an outflow pipe, a valve and valvestem for controlling the flow through the outflow pipe, and apparatusfor automatically operating said valve in accordance with the speed of arevoluble element, said apparatus including a walking beam supportedupon an upright by a handle-provided pivot having flat sides whichallows escape through the cut awayportion of that portion of the walkingbeam which surrounds the pivot as a wall, and the end of the walkingbeam being provided with a bifurcated end which allows .the' same to bewithdrawnfroma pivoton the valve stem straddles.

5. In a governor-controlled valve, an outwhich the bifurcated end .flowpipe, a valve and valve stem controlling the outflow pipe, and apparatusfor controlling the operation of the valve in accordance with the speedof a revoluble element and ineluding a walking beam supported upon anupright by a handle-provided pivot having flat sides which allows theescape of the walking beam through a recess in the portion of thewalking beam which surrounds the pivot as a wall and the walking beambeing provided with a bifurcated end which straddles a pivot pin on theend of the valve stem, and the said walking beam further being providedwith a hooked portion whose opening faces the opening through which thepivot pin of the upright may escape and which allows the walking beam tobe temporarily rested within the hooked portion of. the saidhandle-provided pivot.

6,. In a liquid-feeding governor of the character described, thecombination of a centrifugal liquid separator, a feed line lea dingthereinto and provided with a pair of valve seats, a single puppet valveand governor apparatus for causing the puppet valve to seat on one ofthe valve seats until a predetermined speed is' reached and upon theattainment of excessive speed to seat upon the other valve seat, therebyto maintain a proper speed of the liquid separator.

In testimony whereof, I sign this specification.

OTTO A. KRENKE.

